Measurement of the Strange Quark Contribution to Nucleon Structure Through Parity-Violating Electron Scattering
- Univ. of Maryland, College Park, MD (United States)
The G0 backward angle experiment, completed in Hall C of the Thomas Jefferson National Accelerator Facility (TJNAF), measured parity-violating asymmetries in elastic electron-proton and quasielastic electron-deuteron scattering at Q2 = 0.22 and 0.63 (GeV/c)2. The asymmetries are sensitive to strange quark contributions to currents in the nucleon and the nucleon axial-vector current. The results indicate strange quark contributions of ≤ 10% of the charge and magnetic nucleon form factors at these four-momentum transfers. This was also the first measurement of the anapole moment effects in the axial-vector current at these four-momentum transfers.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 989186
- Report Number(s):
- JLAB-PHY-10-1226; DOE/OR/23177-1293; TRN: US1007089
- Country of Publication:
- United States
- Language:
- English
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